Machine for drying veneer.



J. E. MARQUIS. v MACHINE FOR DRYING VENEER.

APPLICATION FILED JUNE 9. 1913.

1,086, 1 94;, Patented Feb. 3, 1914.

JOSEPH E. MARQUIS, 0F WILLIAMSTOWN, WEST VIRGINIA.

MACHINE FOR DRYING VENEER.

Specification of Letters Patent.

Patented Feb. 3,1914.

Application filed June 9, 1913. Serial No. 772,635.

L7 '0 all whom it may concern:

Be it known that I, JOSEPH E. MAR UIs, a citizen of the United States, resident of \Villiamstown, in the county of WVood and State of est Virginia, have made a certain new and useful Invention in Machines for Drying Veneer; and declare the following to 'be a full, clear, and exact description of the same, such as will enable others skilled in the art to which itappertains to make and use the invention, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is a central longitudinal section of the invention. Fig. 2 is an end view of the same. Fig. 3 is a section on the line 3-3 Fig. 1.

The object of the invention is to provide improved means for. drying veneer, in large quantities as it comes from the cutter, and it consists chiefly in the novel construction and combinations of parts involving a novel method or process of preparing veneer, as hereinafter set forth.

In the accompanying drawings, illustrating the invention, the numeral 2, indicates a straight elongated casing, which is designed to be from fifty to one hundred feet, more or less, in length, and comparatively narrow, its width being sufiicient to accommodate the run of veneer, as out.

At each end of the casing are provided transverse rollers 3, one above another, said rollers being of proper width to fit between the casing walls and having shafts, mounted in suitable bearings in said walls. They are provided with sprocket wheels 4, for a chain 5, and gearing, whereby the .rollers are turned. A driving pulley 6 is secured to the shaft of the lower roller at one end of the casing. The shafts of the rollers at each end of the casing are in the same vertical plane, and the rollers are designed to carry endless wire belts 7. In the drawing, three of such beltsor bands, one above another, are shown, butthere may be more if required to dry the veneer. These wire belts extend nearly the length of the casing, and are supported on iron plates 8, which extend horizontally from roller to roller,"being substantially tangential to their rolling surfaces at top and bottom. Below the beltsupporting plates are heating chamberslO, having suitable heating means, as steam pipes 12 and gas pipes having jets as indicated at 14. These heating chambers are substantially closed at their ends by the" rolls, in the chambers above the lowest, which is closed by walls. Supporting plates 15, forothe heating pipes, are secured to the side walls of the casing, and guard-plates 16, are interposed at the sides and ends of the heating devices. The heated air is designed to be forced through the fine wire belting by means of ventilatorsor fans (not shown).

In the construction shown in the vdrawings, the lower stretch of the upper belt and the upper stretch of the middle belt run at the same speed and are in contact except when carrying veneer, which is held firmly between them because of the weight of the upper belt, the erforated plate under the upper stretch of the middle belt affording proper support. In the same manner the sheet of veneer is firmly held between the lower stretch of the middle belt and the upper stretch of the lower belt.

In the operation of this apparatus, the sheets of veneer are fed into the casing at the'entrance end between the wire belts carried by the upper rollers and the rollers next below. These wire belts hold the sheets of veneer between them and admit the hot air freely to the surfaces of 1 the veneer, while the sheets are carried by the belts to the other end of the casing and discharged, or turned downward and fed between the wire belts of the second and third sets of rollers. In this proceeding the veneer is not designed to-have motion relative, to the belting, its surfaces remaining in the same position between the belt surfaces during the carrying movement. In this manner it is intended to provide for rapid drying, and to avoid causing the surfaces of the veneer to become smooth while being heated.

The veneer surfaces are left by the belts in rough condition when heated and dried, this condition being best for taking the glue, when the veneer is to be applied.

I claim:

1. Apparatus for drying veneer, consisting of an elongated casing, therein an,up per endless wire belt engaging rollers at the ends of the casing, an endless lower wire belt of even length to said upper endless wire belt, and in contact therewith throughout its upper stretch, a perforated plate secured to the casing and supporting the upper stretch of the lower wire belt, heating chambers above and below said perforated plate, means for heating said chambers, and stretches of the belts throughout the length means for turning the rollers.

2. Apparatus for drying veneer, comprising an elongated easing, therein an upper an intermediate endless wire belt in contact by its upper and lower stretches with the upper and lower Wire belts, rollers at the ends of the casing engaging the belts,

10 perforated plates supporting the contact of the casing, hot air chambers within said belts and means for heatin said chambers. In testimony whereof I a x my signature,

. endless wire belt, a lower endless wire belt, in presence of two witnesses.

Witnesses:

- J. J. LoRENTz, O. B. RosE. 

